问题
选择题
| He is studying _____ while my brother is studying _____ at school. |
A. the law; the computer B. a law; a computer C. laws; computers D. law; computer |
答案
答案：D
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| He is studying _____ while my brother is studying _____ at school. |
A. the law; the computer B. a law; a computer C. laws; computers D. law; computer |
答案：D